Ventilation system



FIEF E (3'. 'H. TQWER I VENTILATION SYSTEM Filed July 23, 1920 4 FiaLINVENTBR EHARLESH TDWER 'AT'TEIRNEY WQM Patented Dec. 23, 1924.

U N l T D T S CHARLES H. TOWER, OF HOLYOKE, MASSACHUSETTS.

VENTILATION SYSTEM.

Application fileql' July 23, 1920. Serial No. 398,538.

To all whom it may concern:

Be it known that 1, CHARLES H. Towns, a citizen of the United States ofA1nerica,residing at 56 Fairfield Ave, Holyoke, in the county of Hampdenand State of Massachusetts, have invented certain new and usefulImprovements in Ventilation Systems, of which the following is aspecification.

This invention relates to improvements in ventilating systems and itsleading object is to provide a ventilating system and apparatus wherebya constant inflow of fresh air and outflow of used air can be producedin a building without the necessity of using motor driven fans or thelike.

The invention is embodied in a ventilating apparatus which includes arotary hooded intake adapted to be positioned on the roof of a buildingand a warm air conduit having communication with said intake to deliverthe warm air of the building in the direction of thewind andthe cold airconduit having communication with said intake to receive cold air underwind pressure, the warm air conduit having its intake at the top of thebuilding or at the top of each room thereof and the cold air conduithaving its outlet at the bottom of the building or at the bottom of eachroom thereof.

lVith the above and other objects in view this invention relates tocertain new and useful constructions, combinations and arrangements ofparts, clearly described in the following specification and fullyillustrated in the accompanying drawings in which:

Figure 1 is a vertical sectionalyiew taken through a building equippedwith my 1111- proved ventilating apparatus.

Figure 2 is a similar view taken through a building provided with aseries of floors and cold air and warm air conduits having a pluralityof openings.

Fig, 2 is a detail sectional view of'the warm air conduit showing avalve.

Figure 3 is a detail sectional view through the cold air conduit showingthe deflecting valve for causing the cold air to flow into the building.

Referring to the accompanying drawings 5 designates a building having afloor 6 and a roof 7 and side walls 8 and which may be of anyconstruction. On the roof 7 a rotary intake 9 is mounted to work uponthe base support 10. This rotary intake is pro vided with the usual windcontrol vane 11 w th a we e air table or pe ing 2 located on the sameside of the intake mem' her as the vane 11 so that the said outlet12will always face in the direction the vane 11 faces away from the wind.The member 9 is provided with the usual hood 13 and with a cold airintake opening 14 which faces in the direction opposite to the directionof the warm air outlet 12, that is toward wind. The opening 14 isprovided with suitable bailies or dust retarding bars 15 and which maybe adjusted for theudifierent periods of the year or conditions of thesurrounding atmosphere.

An elbow 16 is mounted within the middle of the member 9 and the upperend of said elbow 16 has communication with the opening 14 and the lowerend or vertical leg of the elbow 16 has a swivel "connection at 17 withthe upper end of the cold air conduit 18. g V

The cold air conduit 18 may be of any suitable construction and extendalong the faces of the building ceiling and the walls thereof or betweenthe walls thereof and is preferably insulated by asbestos or the like toprevent exchange of heat between the room or building and the inflowingcold air. The warm air conduit 19 has communication at its upper endwith the base 10 on which the rotary member 9 works and may be arrangedagainst the walls of t e building or built in said walls. The cold airconduit 18 is provided with an outlet 18 located at the lower endthereof and which is dis posed at a point slightly above the level ofthe floor of the buildingwhile the warm air conduit 19 is provided atits lower end with an intake 19*, located near the ceiling of the roomor the roof of the building, so as to receive warm air from the warm airstrata or zone which exists in a heated room. The cold air conduit .18is equipped with a movable deflecting valve 20, whereby downflowing coldair will be deflected into 'a room, and is also provided with a damper21, whereby the amount of the air coming into a room may be regulated atwill.

The warm air conduit 19 is provided with a movable deflecting valve 20and a damper 21 for similar purposes.

When the building is provided with a series of floors and superimposedrooms the cold air conduit is provided with an outlet into each room andthe warm air conduit is provided with an, inlet located. in the up P P tof each team? The intake conduit is insulated by the insulating material18 so that the inflowing air will not be heated by the heat of the room,and a therm-o circulation will be maintained by reason of thedisplacement of the warm air in the room or rooms by the t inflowingcold air which is not preheated during its flow through the intakeconduit.

The two conduits thus provide, in conjunction with the chamber orchambers of the building, a path for the constant circulation of air.The warm air is permitted at all times when the intake opening oropenings are not. closed to How upwardly, while the cold. air, which isheavier than the warm air, is likewise permitted to flow downwardly,thus providing a non-forced natural circulation of fresh air from theoutside through the building, the extent of which may be controlled atwill. When a sharp wind is blowing into the fresh air intake thevelocity of flow of the incomingair will be accelerated, thusaccelerating the velocity of flow of the used air in the building, aswill be readily understood.

My invention provides means for ventilating a building, without creatingdangerous drafts, and without employing mo tor driven fans or the like.

Having described my invention I claim:

A ventilating system consisting of the combination of a building havinga plurality of superimposed compartments of a cold air pipe having anoutlet opening near the floor of each compartment and having its wallinsulated against the transference of the heat in the compartments tothe cold air flowing therein, a stationary bearing on the building, aventilator mounted to r0- tate on said bearing and provided with anintake opening on one side thereof and a wind vane on the opposite sideto maintain the intake in wind-facing direction an 0] how conduit havingrotatable connection with the upper end of the cold air pipe andpermanent connection with the intake, said ventilator having a warm airoutlet facing in the direction of the wind vane, and a warm air pipehaving a warm air inlet near the ceiling of each compartment and anoutlet discharging into the warm air outlet of: the ventilator, wherebya thermo-circulw tion is maintained in the compartments and the velocityof this circulation will be accelerated by wind pressure upon the coldair pipe, and upwardly inclinable and in wardly opening deflectingvalves for closing and opening said cold air outlets.

Signed by me at Holyoke, Mass, Jan. 17th, 1920.

CHARLES H. TOWVER.

